void MarkupFormatter::appendOpenTag(StringBuilder& result, const Element& element, Namespaces* namespaces)
{
result.append('<');
result.append(element.tagQName().toString());
if (!serializeAsHTMLDocument(element) && namespaces && shouldAddNamespaceElement(element, *namespaces))
appendNamespace(result, element.prefix(), element.namespaceURI(), *namespaces);
}
void MarkupAccumulator::appendOpenTag(StringBuilder& result, const Element& element, Namespaces* namespaces)
{
result.append('<');
result.append(nodeNamePreservingCase(element));
if (!serializeAsHTMLDocument(element) && namespaces && shouldAddNamespaceElement(element, *namespaces))
appendNamespace(result, element.prefix(), element.namespaceURI(), *namespaces);
}
void MarkupAccumulator::serializeNodesWithNamespaces(Node& targetNode, EChildrenOnly childrenOnly, const Namespaces* namespaces, Vector<QualifiedName>* tagNamesToSkip)
{
if (tagNamesToSkip) {
for (size_t i = 0; i < tagNamesToSkip->size(); ++i) {
if (targetNode.hasTagName(tagNamesToSkip->at(i)))
return;
}
}
Namespaces namespaceHash;
if (namespaces)
namespaceHash = *namespaces;
if (!childrenOnly)
appendStartTag(targetNode, &namespaceHash);
if (!(serializeAsHTMLDocument(targetNode) && elementCannotHaveEndTag(targetNode))) {
Node* current = isHTMLTemplateElement(targetNode) ? toHTMLTemplateElement(targetNode).content()->firstChild() : targetNode.firstChild();
for ( ; current; current = current->nextSibling())
serializeNodesWithNamespaces(*current, IncludeNode, &namespaceHash, tagNamesToSkip);
}
if (!childrenOnly)
appendEndTag(targetNode);
}
void MarkupFormatter::appendAttribute(StringBuilder& result, const Element& element, const Attribute& attribute, Namespaces* namespaces)
{
bool documentIsHTML = serializeAsHTMLDocument(element);
QualifiedName prefixedName = attribute.name();
if (documentIsHTML && !attributeIsInSerializedNamespace(attribute)) {
result.append(' ');
result.append(attribute.name().localName());
} else {
if (attribute.namespaceURI() == XMLNSNames::xmlnsNamespaceURI) {
if (!attribute.prefix() && attribute.localName() != xmlnsAtom)
prefixedName.setPrefix(xmlnsAtom);
if (namespaces) { // Account for the namespace attribute we're about to append.
const AtomicString& lookupKey = (!attribute.prefix()) ? emptyAtom : attribute.localName();
namespaces->set(lookupKey, attribute.value());
}
} else if (attribute.namespaceURI() == XMLNames::xmlNamespaceURI) {
if (!attribute.prefix())
prefixedName.setPrefix(xmlAtom);
} else {
if (attribute.namespaceURI() == XLinkNames::xlinkNamespaceURI) {
if (!attribute.prefix())
prefixedName.setPrefix(xlinkAtom);
}
if (namespaces && shouldAddNamespaceAttribute(attribute, element)) {
if (!prefixedName.prefix()) {
// This behavior is in process of being standardized. See crbug.com/248044 and https://www.w3.org/Bugs/Public/show_bug.cgi?id=24208
String prefixPrefix("ns", 2);
for (unsigned i = attribute.namespaceURI().impl()->existingHash(); ; ++i) {
AtomicString newPrefix(String(prefixPrefix + String::number(i)));
AtomicString foundURI = namespaces->get(newPrefix);
if (foundURI == attribute.namespaceURI() || foundURI == nullAtom) {
// We already generated a prefix for this namespace.
prefixedName.setPrefix(newPrefix);
break;
}
}
}
ASSERT(prefixedName.prefix());
appendNamespace(result, prefixedName.prefix(), attribute.namespaceURI(), *namespaces);
}
}
result.append(' ');
result.append(prefixedName.toString());
}
result.append('=');
if (element.isURLAttribute(attribute)) {
appendQuotedURLAttributeValue(result, element, attribute);
} else {
result.append('"');
appendAttributeValue(result, attribute.value(), documentIsHTML);
result.append('"');
}
}
// Rules of self-closure
// 1. No elements in HTML documents use the self-closing syntax.
// 2. Elements w/ children never self-close because they use a separate end tag.
// 3. HTML elements which do not have a "forbidden" end tag will close with a separate end tag.
// 4. Other elements self-close.
bool MarkupAccumulator::shouldSelfClose(const Node& node)
{
if (serializeAsHTMLDocument(node))
return false;
if (node.hasChildren())
return false;
if (node.isHTMLElement() && !elementCannotHaveEndTag(node))
return false;
return true;
}
// Rules of self-closure
// 1. No elements in HTML documents use the self-closing syntax.
// 2. Elements w/ children never self-close because they use a separate end tag.
// 3. HTML elements which do not have a "forbidden" end tag will close with a separate end tag.
// 4. Other elements self-close.
bool MarkupFormatter::shouldSelfClose(const Element& element) const
{
if (serializeAsHTMLDocument(element))
return false;
if (element.hasChildren())
return false;
if (element.isHTMLElement() && !elementCannotHaveEndTag(element))
return false;
return true;
}
EntityMask MarkupAccumulator::entityMaskForText(const Text& text) const
{
if (!serializeAsHTMLDocument(text))
return EntityMaskInPCDATA;
const QualifiedName* parentName = 0;
if (text.parentElement())
parentName = &(text.parentElement())->tagQName();
if (parentName && (*parentName == scriptTag || *parentName == styleTag || *parentName == xmpTag))
return EntityMaskInCDATA;
return EntityMaskInHTMLPCDATA;
}
String MarkupAccumulator::serializeNodes(Node& targetNode, EChildrenOnly childrenOnly, Vector<QualifiedName>* tagNamesToSkip)
{
Namespaces* namespaces = 0;
Namespaces namespaceHash;
if (!serializeAsHTMLDocument(targetNode)) {
// Add pre-bound namespaces for XML fragments.
namespaceHash.set(xmlAtom, XMLNames::xmlNamespaceURI);
namespaces = &namespaceHash;
}
serializeNodesWithNamespaces(targetNode, childrenOnly, namespaces, tagNamesToSkip);
return m_markup.toString();
}
EntityMask MarkupFormatter::entityMaskForText(const Text& text) const
{
if (!serializeAsHTMLDocument(text))
return EntityMaskInPCDATA;
// TODO(hajimehoshi): We need to switch EditingStrategy.
const QualifiedName* parentName = nullptr;
if (text.parentElement())
parentName = &(text.parentElement())->tagQName();
if (parentName && (*parentName == scriptTag || *parentName == styleTag || *parentName == xmpTag))
return EntityMaskInCDATA;
return EntityMaskInHTMLPCDATA;
}
void MarkupAccumulator::appendAttribute(StringBuilder& result, const Element& element, const Attribute& attribute, Namespaces* namespaces)
{
bool documentIsHTML = serializeAsHTMLDocument(element);
result.append(' ');
QualifiedName prefixedName = attribute.name();
if (documentIsHTML && !attributeIsInSerializedNamespace(attribute)) {
result.append(attribute.name().localName());
} else {
if (attribute.namespaceURI() == XLinkNames::xlinkNamespaceURI) {
if (!attribute.prefix())
prefixedName.setPrefix(xlinkAtom);
} else if (attribute.namespaceURI() == XMLNames::xmlNamespaceURI) {
if (!attribute.prefix())
prefixedName.setPrefix(xmlAtom);
} else if (attribute.namespaceURI() == XMLNSNames::xmlnsNamespaceURI) {
if (attribute.name() != XMLNSNames::xmlnsAttr && !attribute.prefix())
prefixedName.setPrefix(xmlnsAtom);
}
result.append(prefixedName.toString());
}
result.append('=');
if (element.isURLAttribute(attribute)) {
appendQuotedURLAttributeValue(result, element, attribute);
} else {
result.append('"');
appendAttributeValue(result, attribute.value(), documentIsHTML);
result.append('"');
}
if (!documentIsHTML && namespaces && shouldAddNamespaceAttribute(attribute, *namespaces))
appendNamespace(result, prefixedName.prefix(), prefixedName.namespaceURI(), *namespaces);
}